aalto1 untyped-item.component.html
Bandwidth Enhancement of Sequential Rotation Arrays based on Characteristic Mode Inspired Dual-Resonant LP Element
Loading...
Access rights
openAccess
acceptedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
IEEE Transactions on Antennas and Propagation
Abstract
This communication presents a compact, broadband dual-resonant linearly polarized (LP) element aiming at enhancing the bandwidth of sequential rotation arrays (SRAs). The proposed LP element consists of a center-fed split-ring resonator (SRR) microstrip patch and a C-shaped capacitive slot loading. Characteristic mode (CM) analysis shows that the proposed LP element can excite two TM20 modes in the LP state, resulting in broadband radiation performance across the X-band. Furthermore, by applying different sequential rotations and excitation phases to the element, it maintains broadband radiation performance, making it an ideal building block for SRAs and thus enhancing the array's operating bandwidth. To validate the proposed method, a 16 × 16 SRA prototype for dual-circularly-polarized radiation is designed and fabricated using the proposed LP element. Experimental results demonstrate that the prototype achieves a joint 3-dB gain and axial ratio bandwidth exceeding 46.85% for right-hand circularly polarized (RHCP) radiation and 51.1% for left-hand circularly polarized (LHCP) radiation.
Description
Publisher Copyright: © 1963-2012 IEEE.
Other note
Citation
Pang, C, Wang, Q, Sun, M, Wang, Y, Xu, X, Wang, Y, Yue, Z, Wang, Y, Wang, Y, Sihvola, A & Qi, J 2026, 'Bandwidth Enhancement of Sequential Rotation Arrays based on Characteristic Mode Inspired Dual-Resonant LP Element', IEEE Transactions on Antennas and Propagation. https://doi.org/10.1109/TAP.2026.3660774